Comparing Close-Up Lens Choices
I have carried out the same type of exercise with the 28-105, 18-135, 24-70 and 70-200, conclusion: the expensive and large DFA's (24-70 and 70-200) are good but do not exhibit a step change over the smaller zooms and in the field the 18-135 is always in my bag.
However, for indoor work and event work the 24-70 is a good lens, Still not overly impressed with the 70-200 though maybe because I am used to the 60-250 which I sold to buy the 70-200.
Of course this is all subjective so I have to keep in mind what the charts show, one thing is certain though I won't part with the innocuous little 18-135. Best travel lens I have owned.
Regards
Daronl
This is clearly not a macro lens but one can't complain about what it can do!
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5986 posts
12 years
Surrey,
England
I used my softbox on the ground close to the flowers, allowing me to shoot at 1/180th and stopping well down .
Here's couple with the F35-70, at 70mm with the macro setting . ISO 100 / F13 & ISO 200 F16
Now I tried the same flower at similar magnification with the 28-105 at the long end . ISO 100 /F11
Lastly I got closer in with the Tamron zoom at 270mm and its macro range .. I was surprised at how the DOF dropped away dramatically .. ISO 200 / F13
All in all I feel glad to have these lens options available. I think the F35-70 just sneaks ahead of the D FA28-105 in sharpness, however this is comparing 70mm against 105mm. I don't have a real macro lens, but for my purposes these will do! I find the flash helps with contrast and exposure challenges as well as allowing handholding for these sorts of shots.
Pentax K7 with BG-4 Grip / Samyang 14mm f2.8 ED AS IF UMC / DA18-55mm f3.5-5.6 AL WR / SMC A28mm f2.8 / D FA 28-105mm / SMC F35-70 f3.5-4.5 / SMC A50mm f1.7 / Tamron AF70-300mm f4-5.6 Di LD macro / SMC M75-150mm f4.0 / Tamron Adaptall (CT-135) 135mm f2.8 / Asahi Takumar-A 2X tele-converter / Pentax AF-540FGZ (I & II) Flashes / Cactus RF60/X Flashes & V6/V6II Transceiver